A
Bit of Fun with Tabletop Photography
Today I thought I would share last night's adventure on
the tabletop. As you may know, I've been doing tabletop for some
years now. There is always tiny something that can be photographed.
Today's specimen comes from the great outdoors. Well, not exactly the
wild, more like my wife's flower garden. I believe this is a failed
rose bud from some miniature roses that haven't been too excited
about this year's dank spring. Those little plants are fickle about
their environment and have been making it clear that they are not
impressed with Seattle weather.
Someone brought this little thing into the house and it
sat on the banister for a few days before I looked at it long enough
to figure out what it was. At first it looked like a nut or seed pod.
Some additional staring (and magnifying glasses) revealed that it
looks more like a flower bud that has dried and deteriorated all
except a shell created from the veins. Perhaps the wind blew out the
insides, or the rain washed it away. No matter how it got this way,
it is an interesting formation. I knew that it would get
photographed, but it has taken several days for me to finally just
get on with the project.
About the only specialized item needed for macro
photography is a macro lens. For this job I have the trusty Canon
EF-S 60 f/2.8 macro. I find it is usually the perfect focal length
for tabletop subjects and it can get very close when needed. On top
of that, it is sharp even at f/2.8 and just gets better from there up
to about f/16 where you begin to see some degradation from
diffraction.
The Lighting
setup - #1
My first inclination was to use hard
light to emphasize the intricate detail of the leaf's veins. A
snoot was chosen to turn my 300 WS monolight into a very small light
source. Putting the light close gives some falloff, which creates the
vignette effect (no photoshop for that). Sorry I didn't take a photo
of the setup, but in the diagram above tells the story. Try to
imagine the light above the camera with the snoot pointing down and
its nose almost touching the lens hood. A white reflector at the
right (my white
balance disc) adds a little bit of fill.
The light was metered at f/22 to provide enough depth of
field to keep the visible exterior in sharp focus. Using this small
of an aperture with an APS sized sensor has a penalty in terms of
diffraction.
Later shots at f/16 have a little bit more detail. The shutter was at
1/180th second to keep within the camera's sync speed.
Here is the resulting photo without reworks. As you can
see from the shadows, my snooted light is still giving fairly soft
light. This of course is because it is still a relatively large light
source compared to this tiny subject. I could have moved the light
back, but then would loose the falloff and possibly run out of power
for f/22. You might also notice that my shooting table could use a
new surface. The scratches are showing along with a dot of something
at the far right and will need to be retouched out. Using f/22
reveals that there is also some visible sensor dust. So much for
Canon's ultrasonic sensor cleaning. Guess I need to clean my sensor.
Here is the retouched version for comparison. Not a
whole lot done to it other than cleanup of the sensor dust and
scratches, plus application of some local contrast enhancement (also
known as unsharp mask with high radius, low amount), and a little bit
of dodging and burning. Retouching is always a season to taste type
of cooking, and you can see that I went light on the salt this time.
The Lighting
setup - #2
Next experiment was to try soft
light. Soft light requires a large light source, but large is
with regard to the subject. I decided to try using a single CFL bulb
in a reflector for this. The light is large enough to be a soft
source, and continuous light means I can alter the aperture without
having to change the lighting, I just let the camera do the metering.
A few test shots and chimping
allowed me to place the light in a position that put the shadows
where I wanted them. I also added another small 12” folding silver
reflector to brighten things up a little.
Here is the resulting photo from f/16 before retouching.
And the same photo after retouching.
I also tried shallow depth of field to view just a
sliver of the front leaving everything else softly blurred. This was taken at f/2.8.
One last bit of fun was to put a gel filter in front of
the light. Here we have it in blue (a bit of retouching done on this
one).
Coming Next
That
wraps this posting up. Haven't yet decided what to do next, but will
think of something... and hopefully you will like it. :-)
Until then...
-Gene
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